The Willis Jepson Middle School principal received a credible tip and passed it to police, who confirmed Bobby Chambers had the items in his vehicle, according to a news release from the Vacaville Police Department.

Chambers, a special-education teacher, consented to the vehicle search at about 10:10 a.m. at the school, at 580 Elder St.

The 53-year-old man is from Chico, despite teaching at Willis Jepson, nearly 120 miles away in Vacaville.

Investigators said he had less than one ounce of marijuana and extra ammunition in the car.

Chambers faces several drug and gun charges, and is now held at the Solano County Jail.

Students and parents were shocked to learn of his arrest.

"I’m hoping they did a thorough background check on him before he came here to teach, and it is shocking that someone would be teaching junior high kids in that situation," said Stacey Carmelich, a parent.

The school district said Chambers will be placed on leave while officials investigate. He has worked for the district since 2007, and been certified to teach since 1999.

PIECES FLOATING IN THE BAY. THE CATAMARAN -- THE ORACLE WAS WORTH $8 MILLION. NO ONE WAS HURT IN THAT ONE. POLICE SAY THAT -- 53-YEAR-OLD BOBBY CHAMBERS TEACHES SPECIAL ED HERE AT JEFFERSON MEDICAL SCHOOL WHERE VACAVILLE POLICE HAVE BEEN FOR MOST OF THE DAY. THEY MADE THE REST JUST AFTER 10:00 THIS MORNING. PARENTS AND STUDENTS ARE SHOCKED TO LEARN OF THIS TODAY. I SPOKESMAN FOR THE CITY OF VACAVILLE SAID POLICE ARRESTED HIM TODAY AFTER THEY FOUND DRUGS, A LOADED GUN AND AMMUNITION IN HIS VEHICLE. A WOMAN WHO IDENTIFIED HERSELF AS CHAMBERS EX-GIRLFRIEND CALLED THE SCHOOL TO SAY THAT HE CARRIES A LOADED GUN AND DRUGS IN HIS CAR. THE CITY SPOKESMAN SAYS THE PRINCIPAL CALLED POLICE WHO CAME HERE TO SPEAK TO CHAMBERS. HE CONSENTED TO A SEARCH OF HIS VEHICLE. DURING THE SEARCH, THEY FOUND A LOADED WEAPON, SOME DRUGS, AND SOME AMMUNITION. I'M HOPING THEY DID A THOROUGH BACKGROUND CHECK ON HIM BEFORE HE CAME HERE TO TEACH. IT IS SHOCKING THAT HE IS TEACHING JUNIOR HIGH KIDS IN THAT SITUATION S. A POLICE LIEUTENANT SAYS THAT CHAMBERS LIVES IN THE CITY OF CHICO AND COMMITS TO WORK HERE IN VACAVILLE. HE HAS BEEN BOOKED -- AND COMMUTES TO WORK HERE IN VACAVILLE. HE HAS BEEN BOOKED. THEY DO SAY HE HAS WORKED FOR VACAVILLE UNIFIED SINCE 2007 AND HAS HAD A TEACHING CREDENTIAL IN CALIFORNIA SINCE 1999.